Peer-reviewed veterinary case report
Horse with bulging eye due to sinus tumor - what to know
By Scotty, Nicole C et al.·Published in Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·2004·Department of Veterinary Medicine and Surgery, United States·View original on PubMed →
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Original publication title: Exophthalmia associated with paranasal sinus osteoma in a Quarterhorse mare.
- Species:
- horse
Plain-English summary
An 11-year-old Quarterhorse mare developed a growth in her sinuses that pushed into her eye socket, causing her right eye to bulge out (exophthalmia). The vet used imaging tests to confirm the tumor's location and performed biopsies to try to identify it. Unfortunately, despite various tests, they could only determine it was an osteoma (a type of bone tumor) after the mare passed away and the tissue was examined. This case highlights the challenges of diagnosing certain tumors in horses.
People also search for: horse eye bulging · Quarterhorse sinus tumor · equine osteoma diagnosis
Abstract
An 11-year-old Quarterhorse mare developed a paranasal sinus osteoma that extended into the right orbit and led to ipsilateral exophthalmia. Although the tumor was radiographically evident in the paranasal sinuses, ultrasonography was used to demonstrate extension of the tumor into the retrobulbar space, and endoscopy was used to identify its extension into the nasopharynx. Biopsies were obtained using both fine-needle aspiration and paranasal sinus trephination. Despite numerous antemortem diagnostic tests, only postmortem histologic analysis of the mass afforded the diagnosis of osteoma.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/15053369/